Naica’s Crystals Cave, maybe the most amazing underground wonder on Earth, was discovered by chance inside the deep mine of Naica, in the State of Chihuahua, Mexico. It is a true geode: a cave ...
Carlsbad Caverns National Park in southeastern New Mexico is home to 119 known caves, including North America's largest cave chamber, the Big Room.
Related: Cave of Crystals: The deadly cavern in Mexico dubbed 'the Sistine Chapel of crystals' Carlsbad Caverns first began to take shape 265 million years ago, when what is now southeastern New ...